Tabular bar and stop.



E. B. HESS.

TABULAR BAR AND STOP.

APPucATwN man APR. 25. 19u.

` Patented Nov. 2o, 191?.

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e rra o EDWARD B. Hass, or BROOKLYN, NEW YORK, Assrenon To ROYAL frirrnwm'rnn coMraNY, me., or new YORK, N. Y., A CORPORATTON F NEW YORK.

TBULAR BAR AND STOP.

Speclication of Letters Patent.

ratentea am. ao, ier t.

y Application tiled Apri125, 1917. Serial N o. 164,370.

' l0 The present invention relates generally to typewriting or like machines, and has more particularly reference to what is generally nown as tabular bars and stops by means of which, when the carriage is released in a well-known manner, the carriage may move transversely to a greaterl extent than a single letter-space distance.

A typical construction of bar and stop, as the art is at present constituted, consists in a tabular bar having vertical slots in its side face said bar extending transversely of the ymac ine; together lwith stops that are removably seated on the bar. In the particular. form, under consideration, the vertical slots arespaced letter-space distances apart, and'the stops are of sheet material and provided with a lower bifurcated end, the legs of which straddle the bar and slide in the vertical slots of the bar. The walls of the slot, in addition to' acting as a positioning ,means determining the correct position of the stops in respect to a scale usually carn ried by the bar, also act to prevent lateral displacement of the stops. In practice it has, however, been found that upward displacement out of the slotsis liable to take place, especially after the stops have been in use for-some time and after they have become worn d ue to their repeated insertion and withdrawal from. the tabular bar.

1 The main object of the invention is to prevent accidental upward displacement of the tabular stop with respect to the barand to provide simple and eiiective means for accomplishing this purpose.

One feature of the invention resides in providing means to prevent accidental upward displacement of the stops out of the slots.

Still another feature of the invention resides. in a tabular bar having a longitudinal channel, together with a tabularstop having means extending into the channel for preventing displacement of the stop.

lar embodiment, here chosen the tabular bar is provided with a longitudinal channel preferably 'upper face of the bar, and the spring means are, in the particular form n Another feature of the invention resides 1n providing springmeans for yieldingly holding thestop in position to prevent its' displacement. In a preferred form of the invention herein disclosed, said spring means are carried by each individual stop so that the stops are held in individual springpressed relation on the bar. 'In the particufor illustration,

arranged in the here described, located between the legs of the lower bifurcated end of the stop and project into the .channel and engage with the wall or walls thereof.

ln the accompanying drawings: Figure l is a top plan view of a tabular bar, embodying a preferred form of the invention, shown mounted in the end frames of the carriage and showing also the relation of the paper table brackets to the parts, and further illustrating several stops in position, one of said stops being in section.

\ Fig. 2 is a side elevation of one end of the bar with stops in position, part of the bar being broken away 4to show the channel, and one of the stops being in section.

Fig. 3 is an 'end View ofthe tabular bar. Fig. 4 is a transverse vertical sectional view through the bar taken on the line 4 1 of Fig. 1 showing a preferred form of stop in position. 4

Fig. 5 is a'viewV similar to Fig. 4 showing a modified construction of stop, and

Fig. 6 is also a view similar to Fig. 4 showing another modified construction of stop.

The tabular bar 7 is generally square in cross section as shown and is reduced at its ends 8 to provide threaded stems flattened on the top. A convenient method. of adjustably mounting said bar in the laterally moving carriage consists in passing the reduced portions 8 through` the end frames 9 of the carriage and through the paper table brackets 10. Said end frames and brackets are provided with openings '1l of slightly larger diameter than the-reduced end portions 8, andtwo lockv nuts 12, at each end, are provided for locking the bar 7 in its adjusted position with respect to the end frames 9 and paper-table brackets 10.

The main. body of the tabular bar 'I is provided with vertical slots 13 in its side faces, which slots are spaced letter distances apart and are properly related to a scale indicated on the upper lface of the Ibar 7 as shown in Fig. 1. Extending longitudinally of the bar is a channel 14 opening into the upper face of the bar.

15 indicates a stop, shown here as being made from sheet metal, whose lower end is bifurcated to provide legs 16 which straddle the bar, and which are spaced apart to permit said legs to slidingly enter the vertical slots 13 when straddling the bar. The upper portion of the stop is preferably shaped to form a handle or grasping portion here shown as a ring 17. Intermediate the legs 16 of the stop suitable means are provided for engaging the channel of the bar to prevent upward displacement of the stop out of the vertical slots'. In the form shown in Figs. 1 and 4, a'spring tongue 18 is formed integral with the blank constituting the stop, said spring tongue orl projection depending between the legs 16 of the stop, and being provided with an enlargement 19 to engage one of the side walls of the channel. It will be understood that when the stop straddles the bar, the projection 18 extends into the channel and by its frictional engagement with the wall of the same tends to prevent upward accidental displacement of the stop. At the same time, when a sufficient upward intentional pull is exerted on the stop, said stop will readily be withdrawn from the bar.

In Fig. 5 the stop 15 is provided with a separate spring member 20 suitably secured between the legs 16 and terminating at its lower end in a rounded head 21 engaging both side walls'of the channel 14.-.

In Fig. 6 the spring means of the stop 15 take the form of two depending springs 22 suitably secured between the legs 16 of the said stop. Each spring 22 is provided with a small curl or head 23 at its lower end and Copies of this patent may be obtained for each head 23 is adapted to engage with one side wall of the chanel 14. i

From the foregoing it followsthat the tabular bar 7 is adapted to receive a sto 15 in any letter-space position by reason o the vertical slots 13 ofithe' bar 'and coperating legs 16 of the stop, and that thisstopy is readily removable from itsiposition on the bar, but that, nevertheless, the spring means and channel afford sufficient frictional tension to prevent an accidental upward displacement of the stop. It will also be noted I that, in the form herein disclosed eachA stop is individually spring pressed which tends to insure the (proper amount of tension on each stop, an permits anystop to be removed from the bar without disturbing the remainder..

I claim:

1. A tabular bar having vertical slots in its side faces spaced letter-distance apart to receive a tabular stop, an open longitudinal channel in the top face of the bar, a tabular stop having a bifurcated lower end which straddles the bar and the le s of which engage in the vertical slots, an means carried by the stop intermediate its legs and pro-- j ecting into the channel for holding the stop against displacement.

2. A tabular bar having vertical slots in its side faces spaced letter-distance apart to receive a tabular stop, an open longitudinal channel in the top face of the bar, a tabular stop having a bifurcated lower end which.

straddles the bar and the legs of which engage in the vertical slots, and-sprin means projecting into the channel for holding the stop against displacement.

Signed at New York city, in the county of New York and State of New York, this 23 day of April, 1917.

EDWARD B. iiEss.

ve cents each, by addressing the: "Uommisl'lloner Patente,

Washington, D. 0. i

carried by the stop intermediate its egs andV 

